Definition of Ptychagnostus. Meaning of Ptychagnostus. Synonyms of Ptychagnostus

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Definition of Ptychagnostus

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Meaning of Ptychagnostus from wikipedia

- affinis) Ptychagnostus aculeatus Ptychagnostus akanthodes Ptychagnostus atavus Ptychagnostus c****is Ptychagnostus ciceroides Ptychagnostus cuy**** Ptychagnostus...
- punctuosus and affinis within Ptychagnostus, but preferred to place the closely related atavus within Acidusus. "Ptychagnostus atavus". Paleobiology Database...
- Middle Cambrian of Australia (Ptychagnostus punctuosus-zone, Quita Formation, Northern Territories) and Sweden (Ptychagnostus punctuosus-zone, Andrarum,...
- Ptychagnostus atavus (= Acidusus atavus) - ptychagnostid agnostid Ptychagnostus germ**** Ptychagnostus gibbus Ptychagnostus intermedius Ptychagnostus...
- 1935 by the ****anese paleontologist Teiichi Kobayashi as Agnostus (Ptychagnostus?) orientalis. However, Kobayashi's holotype consisted only of a badly...
- species was also originally considered as the type species of the genus Ptychagnostus, established by the German paleontologist Otto Jaekel in his paper Über...
- tissue, and is slightly younger than the Burgess Shale, falling in the Ptychagnostus praecurrens trilobite zone. Moon, Caron & Moysiuk (2023) considered...
- the trilobites. It lived during the Middle Cambrian (Ptychagnostus atavus Zone to Ptychagnostus punctuosus Zone), approximately 505 to 500 million years...
- Guzhangian. The base is defined as the first appearance of the trilobite Ptychagnostus atavus around 504.5 million years ago. The top is defined as the first...
- the Drumian Stage, marked by the first appearance of the trilobite Ptychagnostus atavus around 504.5 million years ago. The 'golden spike' that formally...